String trimmer head



1. String trimmer head

1.1 : Perspective

1.2 : Perspective

1.3 : Front

1.4 : Back

1.5 : Left

1.6 : Right

1.7 : Top

1.8 : Bottom

The broken lines showing of the string illustrates the environment of the claimed design and forms no part thereof. The remaining broken lines in the drawings illustrate portions of the string trimmer head and form no part of the claimed design. 

CLAIM The ornamental design for a string trimmer head, as shown and described. 